For fun I'll slap on a fisheye to get a wide shot of the venue if needs be.
Do I wish I had 1 or 2 zooms? Rarely.
I like the fact that I can get as wide open as I want with primes since zooms can never get below higher than 2.8.
And oh, for the record - 90% of lens threads on RFD is all about, oh what's the cheapest for this and that? To that I say, photography isn't cheap - both time and money. In that order. Improve yourself first before improving your gear because, by improving yourself you learn to konw what you are doing wrong and learn the limitations of your gear. The rest comes later.